212222112202013 has 4 divisors (see below), whose sum is σ = 212398816709628. Its totient is φ = 212045407694400.

The previous prime is 212222112201959. The next prime is 212222112202063. The reversal of 212222112202013 is 310202211222212.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 15774893384644 + 196447218817369 = 3971762^2 + 14015963^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212222112202013 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 212222112202013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212222112202063) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 88352252006 + ... + 88352254407.

It is an arithmetic number, because the mean of its divisors is an integer number (53099704177407).

Almost surely, 2^{212222112202013} is an apocalyptic number.

It is an amenable number.

212222112202013 is a deficient number, since it is larger than the sum of its proper divisors (176704507615).

212222112202013 is a wasteful number, since it uses less digits than its factorization.

212222112202013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176704507614.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 212222112202013 its reverse (310202211222212), we get a palindrome (522424323424225).

The spelling of 212222112202013 in words is "two hundred twelve trillion, two hundred twenty-two billion, one hundred twelve million, two hundred two thousand, thirteen".